And quite a few other bells and whistles. I took the CS300 for its first real test today on my third trip of the season to Sognsvann. So far it looks like it’s able to do everything the ad promises and more. It will, for instance, start to beep to inform you that you’re out of your zone. I have no idea what that means, but it’s probably a good thing to stay in the zone. Staying in your zone is always a good thing.